Exam 1: Experimental Design

Question 1

What are the five characteristics of life?

Answer 1

1. Cells and organization
2. Reproduction/replication
3. Information
4. Energy use and metabolism
5. Evolution

Question 2

How many steps does the scientific method have?

Answer 2

5

Question 3

What are the steps of the scientific method?

Answer 3

1. Question/observation
2. Testable hypothesis
3. Experiment
4. Data
5. Accept/reject hypothesis

Question 4

What is a hypothesis?

Answer 4

Prediction that can be shown to be correct or incorrect

Question 5

Why is a hypothesis never really proven?

Answer 5

You may not have found the true explanation for a phenomenon

Question 6

What is a theory?

Answer 6

Broad explanation of some aspect of the natural world that is substantiated by a large body of evidence

Question 7

Is a theory ever proven true?

Answer 7

No

Question 8

What are the two approaches to understanding biology?

Answer 8

1. discovery-based science
2. hypothesis testing

Question 9

What is the goal of discovery-based science?

Answer 9

To gather information

Question 10

What does discovery-based science lead to if successful?

Answer 10

Hypothesis testing

Question 11

What are the two components of theories?

Answer 11

Pattern and Process

Question 12

What is pattern?

Answer 12

Something that happens in the natural world

Question 13

What is process?

Answer 13

Responsible for creating pattern

Question 14

What are the two types of controls?

Answer 14

Positive and negative

Question 15

What is a negative control?

Answer 15

One without the expected outcome

Question 16

What is a positive control?

Answer 16

One with the expected outcome